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P. RICHARDSON.

' DIE EOE SEGURING HEEL PLATES T0 RUBBER SHOES. I No. 296,623. Patented Apr. 8, 1884.

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UNITED STATES PATENT OFFICE.

FREDERICK RICHARDSON, OFNPROVIDENGE, RHODE ISLAND.

DIE FOR SECURING HEEL-PLATES TO RUBBER SHOES.

SPECIFICATION forming part of Letters Patent No. 296,623, dated April 8, 1884-.

Application filed October 1, 1888. (No model.)

To all whom it may concern Be it known that I, FREDERICK RICHARD- SON, of the city and county of Providence, State of Rhode Island, have invented a new and useful Improvement in Dies for Securing -Heel-1?lates to Rubber Shoes; and I hereby declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying-drawings, forming part of this specification.

This invention has reference to an improvement in the dies which are placed into rubber shoes for the purpose of bending and clinching the nails or pins by which metallic wearing pieces are secured to the rubber shoes; audit consists in-the peculiar and novel construction of the die for bending the nails or pins, and also the die for clinching the same, as will be more fully set forth hereinafter.

In rubber shoes, and particularly in rubber overshoes, the rear portion of the heel is subjected to more wear than any other portion of the shoe, and when worn admits water to the interior of the shoe. This portion is therefore usually protected by some metal plate or wearing-surface, which requires to be firmly secured by clinching the nails or pins; and to do this more effectually, so as to prevent the tearing of the rubber, and also prevent leakage, is the object of this invention. \Vhen nails or pins are driven through the heel of a rubber shoe against the ordinary iron last, the nails are liable to bend near the heel-plate and 5 tear the material, thus making a rent through which water may enter the shoe, and this makes the overshoe practically useless. I

form the die so that the first operation will be to curve the ends of the pins or nails without bending the portion in the inaterial of the heel, and the continuation of the pressure exerted on the heel-plate will clinch the pins or nails;

and so compress the material around the shanks of the pins or nails that no water can enter the shoe.

Figure l is a view of the first die, showing the heel-plate resting on the same. Fig. 2 is a view of the die, showing the heel plate forced down on the die, so as to bend the lower end of the pins formed on the heel-plate. Fig.

3 is a top View of the die, showing the positions of the inclined planes on which the ends of the pins are bent. Fig. 4 is a view of the clinching-die, showing the heel-plate resting on the same.

In the drawings, A is a heel-plate.

b b are pins formed in one piece with the heel-plate. These pins are flattened at the ends which penetrate the material of the heel.

G is the heel-die, provided with the central 6 hole, 0, by which it is secured to a post, so as to occupy always the required position under the follower of the machine by which the heelplate is forced down on the die to clinch the pins 1) b.

To insure the bending of the lower part of the pins b b without affecting the upper part of the same, and insure the close fitting of the same in the elastic material of the rubber heel, the dies 0 are provided with the radiallyplaced inclined planes dd, the incline of which is placed in opposite directions, so as to bend the ends of the pins 1) b in opposite directions when pressure is applied to the heel'plate A, and curve the ends, so as to enter the material and firmly compress the same. These inohms may also be placed, as shown, in the die D, (shown in Fig. 4,) so that each pair of pins are turned and bent toward each other and forced into the material. Tofinish the clinching of these pins or nails, a smooth die may be used and the clinched ends forced into the material.

By the use of dies constructed as described, and provided with as many inclined planes as there are nails or pins, each nail or pin is turned or curved in the required direction, and the heelplate is firmly secured to the heel portion of the rubber shoe without the slightest crevice or rent into which water could enter. As the material is compressed in the clinching and is firmly held, it is forced tightly around the pins or nails, making a water-tight joint.

Having thus described my invention, I claim as new and desire to secure by Letters Patente- 1. A heel-die provided with the radiallyplaced inclined clinching-surfaces (Z d, constructed to bend and clinch the nails or pins of a heel-plate and secure the plate to the heel of a rubber shoe, as described.

2. A heel-die provided with the hole 0, by which it can be secured to a post, and radially-inclined planes constructed to bend the lower portion of the nails or pins, so as to enter the material in clinching and secure the heel-plate, as described.

Vitnesses: FREDERICK RICHARDSON.

M. F. BLIGE, J osnrn A. MILLER, Jr. 

